./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ef6abf16-6d49-444b-9e13-87e49e0d601e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ef6abf16-6d49-444b-9e13-87e49e0d601e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ef6abf16-6d49-444b-9e13-87e49e0d601e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ef6abf16-6d49-444b-9e13-87e49e0d601e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ef6abf16-6d49-444b-9e13-87e49e0d601e/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ef6abf16-6d49-444b-9e13-87e49e0d601e/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4ee0473dc6d7092e83742edafdde9370f3b93e25 .......................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:43:45,985 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:43:45,986 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:43:45,993 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:43:45,993 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:43:45,994 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:43:45,994 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:43:45,996 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:43:45,997 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:43:45,997 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:43:45,998 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:43:45,998 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:43:45,999 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:43:45,999 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:43:46,000 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:43:46,001 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:43:46,001 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:43:46,002 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:43:46,004 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:43:46,005 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:43:46,005 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:43:46,006 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:43:46,007 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:43:46,008 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:43:46,008 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:43:46,008 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:43:46,009 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:43:46,009 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:43:46,010 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:43:46,011 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:43:46,011 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:43:46,011 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:43:46,012 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:43:46,012 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:43:46,012 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:43:46,013 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:43:46,013 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ef6abf16-6d49-444b-9e13-87e49e0d601e/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 07:43:46,022 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:43:46,022 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:43:46,023 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:43:46,023 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 07:43:46,023 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 07:43:46,023 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 07:43:46,023 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 07:43:46,023 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 07:43:46,023 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 07:43:46,024 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 07:43:46,024 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 07:43:46,024 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:43:46,024 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 07:43:46,024 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:43:46,025 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:43:46,025 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:43:46,025 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:43:46,025 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:43:46,025 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 07:43:46,025 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:43:46,025 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:43:46,026 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:43:46,026 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:43:46,026 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:43:46,026 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:43:46,026 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:43:46,026 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:43:46,026 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:43:46,027 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:43:46,027 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 07:43:46,027 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:43:46,027 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:43:46,027 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 07:43:46,027 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ef6abf16-6d49-444b-9e13-87e49e0d601e/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee0473dc6d7092e83742edafdde9370f3b93e25 [2018-11-10 07:43:46,053 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:43:46,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:43:46,063 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:43:46,064 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:43:46,065 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:43:46,065 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ef6abf16-6d49-444b-9e13-87e49e0d601e/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted/Cairo_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 07:43:46,100 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ef6abf16-6d49-444b-9e13-87e49e0d601e/bin-2019/utaipan/data/eecec4eab/bc288a096ca2474f8168a5cc11bfb666/FLAG2ec30b3e8 [2018-11-10 07:43:46,494 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:43:46,495 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ef6abf16-6d49-444b-9e13-87e49e0d601e/sv-benchmarks/c/termination-crafted/Cairo_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 07:43:46,499 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ef6abf16-6d49-444b-9e13-87e49e0d601e/bin-2019/utaipan/data/eecec4eab/bc288a096ca2474f8168a5cc11bfb666/FLAG2ec30b3e8 [2018-11-10 07:43:46,507 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ef6abf16-6d49-444b-9e13-87e49e0d601e/bin-2019/utaipan/data/eecec4eab/bc288a096ca2474f8168a5cc11bfb666 [2018-11-10 07:43:46,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:43:46,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:43:46,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:43:46,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:43:46,513 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:43:46,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:43:46" (1/1) ... [2018-11-10 07:43:46,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1103724a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:43:46, skipping insertion in model container [2018-11-10 07:43:46,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:43:46" (1/1) ... [2018-11-10 07:43:46,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:43:46,530 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:43:46,618 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:43:46,620 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:43:46,628 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:43:46,636 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:43:46,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:43:46 WrapperNode [2018-11-10 07:43:46,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:43:46,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:43:46,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:43:46,637 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:43:46,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:43:46" (1/1) ... [2018-11-10 07:43:46,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:43:46" (1/1) ... [2018-11-10 07:43:46,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:43:46,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:43:46,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:43:46,653 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:43:46,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:43:46" (1/1) ... [2018-11-10 07:43:46,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:43:46" (1/1) ... [2018-11-10 07:43:46,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:43:46" (1/1) ... [2018-11-10 07:43:46,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:43:46" (1/1) ... [2018-11-10 07:43:46,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:43:46" (1/1) ... [2018-11-10 07:43:46,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:43:46" (1/1) ... [2018-11-10 07:43:46,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:43:46" (1/1) ... [2018-11-10 07:43:46,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:43:46,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:43:46,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:43:46,670 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:43:46,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:43:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef6abf16-6d49-444b-9e13-87e49e0d601e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:43:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:43:46,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:43:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:43:46,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:43:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:43:46,764 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:43:46,869 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:43:46,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:43:46 BoogieIcfgContainer [2018-11-10 07:43:46,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:43:46,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:43:46,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:43:46,872 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:43:46,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:43:46" (1/3) ... [2018-11-10 07:43:46,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ee54d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:43:46, skipping insertion in model container [2018-11-10 07:43:46,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:43:46" (2/3) ... [2018-11-10 07:43:46,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ee54d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:43:46, skipping insertion in model container [2018-11-10 07:43:46,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:43:46" (3/3) ... [2018-11-10 07:43:46,875 INFO L112 eAbstractionObserver]: Analyzing ICFG Cairo_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 07:43:46,881 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:43:46,885 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-10 07:43:46,896 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-10 07:43:46,923 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:43:46,923 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:43:46,923 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:43:46,923 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:43:46,923 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:43:46,923 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:43:46,923 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:43:46,924 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:43:46,935 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-10 07:43:46,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 07:43:46,939 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:43:46,940 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:43:46,942 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 07:43:46,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:43:46,946 INFO L82 PathProgramCache]: Analyzing trace with hash -217682939, now seen corresponding path program 1 times [2018-11-10 07:43:46,948 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 07:43:46,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:43:46,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:43:46,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:43:46,983 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 07:43:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:43:47,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:43:47,041 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:43:47,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:43:47,042 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 07:43:47,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 07:43:47,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 07:43:47,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:43:47,055 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2018-11-10 07:43:47,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:43:47,083 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-11-10 07:43:47,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 07:43:47,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-10 07:43:47,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:43:47,093 INFO L225 Difference]: With dead ends: 22 [2018-11-10 07:43:47,093 INFO L226 Difference]: Without dead ends: 11 [2018-11-10 07:43:47,095 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:43:47,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-11-10 07:43:47,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-10 07:43:47,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-10 07:43:47,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-11-10 07:43:47,125 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-11-10 07:43:47,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:43:47,125 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-11-10 07:43:47,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 07:43:47,125 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-11-10 07:43:47,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 07:43:47,126 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:43:47,126 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:43:47,126 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 07:43:47,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:43:47,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1841763534, now seen corresponding path program 1 times [2018-11-10 07:43:47,127 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 07:43:47,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:43:47,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:43:47,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:43:47,129 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 07:43:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:43:47,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:43:47,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:43:47,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:43:47,143 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 07:43:47,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 07:43:47,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 07:43:47,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:43:47,145 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 3 states. [2018-11-10 07:43:47,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:43:47,160 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-11-10 07:43:47,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 07:43:47,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 07:43:47,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:43:47,162 INFO L225 Difference]: With dead ends: 16 [2018-11-10 07:43:47,162 INFO L226 Difference]: Without dead ends: 15 [2018-11-10 07:43:47,163 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:43:47,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-10 07:43:47,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-10 07:43:47,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-10 07:43:47,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-11-10 07:43:47,166 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2018-11-10 07:43:47,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:43:47,167 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-11-10 07:43:47,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 07:43:47,167 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-11-10 07:43:47,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 07:43:47,167 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:43:47,167 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:43:47,167 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 07:43:47,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:43:47,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1468487574, now seen corresponding path program 1 times [2018-11-10 07:43:47,168 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 07:43:47,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:43:47,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:43:47,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:43:47,169 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 07:43:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:43:47,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:43:47,194 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:43:47,194 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 07:43:47,195 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-11-10 07:43:47,196 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [17], [19], [20], [21], [30], [31], [32] [2018-11-10 07:43:47,225 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 07:43:47,225 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 07:43:47,299 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 07:43:47,300 INFO L272 AbstractInterpreter]: Visited 11 different actions 13 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-11-10 07:43:47,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:43:47,307 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 07:43:47,351 INFO L219 lantSequenceWeakener]: Could never weaken! [2018-11-10 07:43:47,351 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 07:43:47,379 INFO L415 sIntCurrentIteration]: We unified 13 AI predicates to 13 [2018-11-10 07:43:47,379 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 07:43:47,380 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 07:43:47,380 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2018-11-10 07:43:47,380 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 07:43:47,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 07:43:47,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 07:43:47,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 07:43:47,381 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 5 states. [2018-11-10 07:43:47,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:43:47,407 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-11-10 07:43:47,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 07:43:47,407 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-10 07:43:47,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:43:47,407 INFO L225 Difference]: With dead ends: 15 [2018-11-10 07:43:47,407 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 07:43:47,408 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 07:43:47,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 07:43:47,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 07:43:47,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 07:43:47,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 07:43:47,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-10 07:43:47,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:43:47,409 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 07:43:47,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 07:43:47,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 07:43:47,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 07:43:47,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 07:43:47,443 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 07:43:47,443 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:43:47,443 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:43:47,444 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 07:43:47,444 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 07:43:47,444 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 07:43:47,444 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 16 26) the Hoare annotation is: true [2018-11-10 07:43:47,444 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 16 26) no Hoare annotation was computed. [2018-11-10 07:43:47,444 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-10 07:43:47,444 INFO L425 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-10 07:43:47,444 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 24) no Hoare annotation was computed. [2018-11-10 07:43:47,444 INFO L425 ceAbstractionStarter]: For program point L21-1(lines 21 23) no Hoare annotation was computed. [2018-11-10 07:43:47,444 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2018-11-10 07:43:47,444 INFO L421 ceAbstractionStarter]: At program point L21-3(lines 21 23) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= 0 (* 2 main_~x~0))) [2018-11-10 07:43:47,444 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-10 07:43:47,445 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 16 26) no Hoare annotation was computed. [2018-11-10 07:43:47,445 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-10 07:43:47,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:43:47 BoogieIcfgContainer [2018-11-10 07:43:47,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:43:47,451 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:43:47,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:43:47,451 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:43:47,452 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:43:46" (3/4) ... [2018-11-10 07:43:47,454 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 07:43:47,457 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 07:43:47,458 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 07:43:47,460 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-10 07:43:47,460 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 07:43:47,460 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 07:43:47,485 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ef6abf16-6d49-444b-9e13-87e49e0d601e/bin-2019/utaipan/witness.graphml [2018-11-10 07:43:47,485 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:43:47,486 INFO L168 Benchmark]: Toolchain (without parser) took 976.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -120.2 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-10 07:43:47,487 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:43:47,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 126.01 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 942.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:43:47,487 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.22 ms. Allocated memory is still 1.0 GB. Free memory is still 942.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:43:47,488 INFO L168 Benchmark]: Boogie Preprocessor took 16.83 ms. Allocated memory is still 1.0 GB. Free memory is still 942.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:43:47,488 INFO L168 Benchmark]: RCFGBuilder took 199.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 942.9 MB in the beginning and 1.1 GB in the end (delta: -187.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:43:47,488 INFO L168 Benchmark]: TraceAbstraction took 580.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.2 MB). Peak memory consumption was 54.2 MB. Max. memory is 11.5 GB. [2018-11-10 07:43:47,489 INFO L168 Benchmark]: Witness Printer took 34.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:43:47,491 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 126.01 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 942.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.22 ms. Allocated memory is still 1.0 GB. Free memory is still 942.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.83 ms. Allocated memory is still 1.0 GB. Free memory is still 942.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 199.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 942.9 MB in the beginning and 1.1 GB in the end (delta: -187.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 580.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.2 MB). Peak memory consumption was 54.2 MB. Max. memory is 11.5 GB. * Witness Printer took 34.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: x <= 2147483647 && 0 <= 2 * x - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 17 locations, 2 error locations. SAFE Result, 0.5s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 16 SDslu, 16 SDs, 0 SdLazy, 16 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.07692307692307693 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 13 HoareAnnotationTreeSize, 5 FomulaSimplifications, 22 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 658 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...